Sawing machine



0. TAHDIF.

SAWtNG MACHINE.

APPLXCAHON FILED DEC. 21. I920.

Patented Oct. 10,1922.

3 SHEETS-SHEET I.

hwenfok 0. Karl/f By Affo rney 0. TARDIF.

SAWiNG MACHINE.

APPLICATION men 020. 21, 1920.

Patented Oct. 10, 1922.

3 SHEETS-SHEET 3.

Patented Oct. 10. 1922.

UNITE o STATES 01mm reams. OFIPLESSISVI'ELQ-QUBBEGKWAIEA, nssronon ro m ronnnmnnn yngs'sxsm v hr DTFRRRTEVI'IDE.

MAGIHEN-E.

Anulicaflomfll'cd December 27-. 1920. sci-inns; 433331) Zeal; whom it m a canoe mg Be it known t at 1, Os ars 'i'Assir-,,

British subject, engineer, residingjat Pies.

following is a full, clear and exactdescrip ftion of the same.

, The resent invention relates to impress Jnents in .sawing mochmes of the. twin gpe and the main object is to provide a mic 'ine oi? this character in which thesawsican be drawn very close to one a-nother'owing to the articular means of securinnwhein on the s' its.

Another oo e ct 1s to pr0v1de, .gieas1s.-ior carrying the logs to the saws, said fneanfl' P 1 demons l'fij for nno part'of the being such that they canoperate' even when the saws are drawn close to ether.

For a complete undeistandin o fthe invention, reference may be he to the aci companying description and drawings, in which:

Figure 1 is a side elevation of one form of machine according to the invention.

Figure 2 is a top riew vof the machine. Figure I one of the chain driving wheels.

Figure line A-A of Figure 3.

Figure 5 is an enlarged vertical sectional view through the saw support mounted on the driving shaft.

Figure 6 is an enlarged side elevation of a portion of the driving chain.

Figure 7 is a top view of a portion of Figure 6 i re 8 is a vertical section view onhne.

,B of Figure 6.

Like numerals oi reterence indicate corresponding parts in each figure.

Referring to thedrawings 1 is the supporting frame, and 2 are the supports for the shafts 3 carryin the. saws 4. Suitable bearings 5 are provided on said supports in which the shafts 3 are journaled, said shafts being preferably slidable in said heari and being operated by the 8111156 whic are pivotally secured at 7 to thesupports 2. The shafts 3 have a loose connection with the central portions of said arms 6, the latter being plvotnlly connected at their free ends to links 8 which are eccentrically contl le chitin-Looming 'ordriving iingslll on I h "way 13 are provided suitable devices 16 tor 3 is anenlargedside elevation of 4 is a vertical sectional view on openings,

netted-to a wheelie; ifties whengseidwheel 3' reo ned shsfis r dra 0 d ee s r s P i p rt e vrdi s tothe thick ess it i fldesired to out thelog's' each snaps said frame 1, are mounts;

' '1 'onrnalled n the' 'laeacrtlief mpp0rts1 fen hm m8 of said hen; lf O andi'the shaft isn pmpuntedltte. i lideway 1,3 w il ll 'IQL slidesI f djacent said guidepaid; whens .theiogs Ithtrieen the rollers 17, are-located on. eagchside of: the guide which serve to center the lo with on toithe gnidewa I and to 1101 v them sit seni e see i by t e e nsft usher ends; on the chain.

feed WE? and, hence, need no special description,

The-shaft 01' one of: the driving wheels 10 carries-a gear 18 which is connected to be driven from a suitable source of power and thepulleys 19 mounted on the'saw shafts 3 and the 10 -feec1ing devices 16 are also driven from t e same or some other source or'fsources of power, v

The driving wheels 10 are preferably octagonal in shapes and in the opposite side faces of each 0 them are p'rovi ed four depressions or cavities 18 each pair of mating cavities bein connected by an openin 19" which exten s right. through the w eel. The inner edge 20 of the ope or passage 19",01- ed e nearest the center 0 said wheel, is-preferifiily V-shaped. In alignment with said edge, 20, is provided in the outer edge 21 a vertical slot 22'which opens through the adjacent flat edge. face 23 of the nets on wheel. Each of said slots 22 is adapter? to receive one of the depending links 24 of the chain 14. The links of the chain 14 freq pentl. carry wood scrapings which would cog slots 22 of the wheel 10, if openings 19 were not provided. By means of these the scrapings will fall therethrough and'the shar edge 20 will divert them on each side of t e wheel 10.

The chain 1 consists of a plurality of links 24 each of which has a depending member 25. these links being pivotally connected by the straight links 26. At suitable intervals the chain is provided with vertical heads 27 which preferably have sharp, heads 27, which carry the logs to the saws. toothed side edges 28. These heads 27 are What I claim as my invention is: adapted toengagethe rearends of the logs A feeding mechanism-for saws, cn1- 15, and carry them through the saws 4. The prising an endless conveyer belt leading to .heads 27 are thin enough to pass in between the saw and composed of pivotally-conuect- 35 the saws 4, and the links engage in the ed links having projections on their inner guideway 13, which stifl'ens the chain 1 1 faces, and wheels around which the belt when the logs are carried to the'saws and passes at opposite ends; said wheels having provides a "better operation of the carrier. peripheral slots in which the projections 10 Each shaft 3, ad acent its inner end, is on said links are adapted to engage, and 40 provided witha flange 29, leaving aprojech also having passages formed transversel ing -portion 30 which is. preferably threaded. through them and into which the inner on s gage is threaded d sk. ornut' 31, which "abuts inner ed es beveled so as to discharge at opagainst said flange 29, said disk havin a, posite sides of the wheels an sawdustor the -15 c rcumferential depression 32 on one ace like which ma enter the s otsand thereby t cried, and 33 are holes which extend right prevent said s ots from becoming clogged.

through said disk, in said depression 32. 2. A feeding mechanism for saws, as In 'szii'dde' 'ression' 32 is secured the circular claimed in claim 1,' in which certain of the Saw 4, and 34 is a ring adapted to engage projections have heads which extend out 50 'over'salidsaw 4,jandjclose said depression 32, wardly beyond the outer faces of the links in order'to forms fiet'or flush surface 35. for engagement with the material to 'he he ring: 34 is 'provided with a plurality sawed. ofholesjBG having an expanding portion Signed at Plessisville, Quebec, Canada, to r'ei'e theheeds' of the bolts 37 which 'prothis 25th day 'of November, 1920.

ject thrcn'h-said ring,saw and disk 31; and

are secure by means of the nuts 38. Thus, GMER'IL TARDIF- ifiwill reedilv be seen that the saws 4 can Witnesses: be closed up to out a very thin board, ow- J. A. POWELL,

ing" to the flush surfaces 35, and the thin (3. Pnrnmxunn. 

